Shingle



July 2, 1929. HQLDSWQRTH 1319111 SHINGLE Filed April 5, 1925 RICHARD A. HOLDSWORTH, OF PHILADELPHIA. PENNSYLVANIA. ASSIGNOR TO THE BARRETT COMPANY, A CORPORATION OF NEW JERSEY.

SHINGLE.

Application filed April 3, 1925.

This invention relates to a shingle that may easily and readily be laid so as to have the proper amount of space between the exposed portions and so as to have the proper amount of overlap to prevent leakage. The shingle can be readily produced, for example, b cutting the same from a sheet of roofing material made by saturating a so-called felt base with waterproofing material, coating the same with plastic material such as asphalt or the. like and then applying a layer of crushed stone, slate, etc. These sheets of manufactured rooting material-can be cut up into shingles of the character set forth in the specification with only a small amount of waste material. Although the shingles can be conveniently manufactured from roofing sheets as above indicated, it is to be understood that they are not limited to this particular sort of material.

The shingles made in accordance with this invention can not only be laid with the proper amount of space between the same and the proper amount of overlap, but the spaces between ordinary rectangular shingles which sometimes form channels through which water may be driven upwardly and into the building, can be avoided as this space is blocked or dammed-by the material constituting a portion of the body of the shingle itself.

The invention will be understood from the description in connection with the accompanying drawings. in which Fig. 1 is a plan view of the sheet ot'roofing material showing how the shingles may be cut therefrom Fig. 2 is a similar view showing how two rows of such shingles may be cut from a wider sheet;

Fig. 3 is a similar view showing how three rows may be cut; and

Fig. 4 shows how the shingles may be installed upon a roof in successive rows.

In the drawings, reference character 1 indicates a sheet of rooting material that may he slit along transverse'lines 2 and 3, these lines making an angle 4 with each other. The sheet 1 may also be slit along the lines 5 and 6 as indicated to produce the shingles .of the desired shape, i. e. an elbow-sha ed shingle having the portion to be expose to the weather (formed by the lines 35) at an angle to the main body portion (formed by the lines 2-6) of the shlngle. It will be noted that the shingle thus formed may be Serial No. 20,346.

considered as composed of two trapezoids, one bounded by the, parallel lilies 3 and line 5 and the linejoining or connecting the vertices 4, and the other bounded by the line connecting the vertices 4, parallel lines 2 and line (5 parallel to line 5. Also each of these trapezoids has two right angles, the first trapezoid above outlined being the one of smallest area and having two right angles formed by the intersection of line 5 with lines 3, and the other trapezoid being the one of greatest area having two right angles formed by the intersection of the line connecting the vertices 4 with parallel lines 2. Thus the latter two right angles are adjacent the oblique line connecting the vertices 4, which line serves as a side of the trapezoid bounded -on the other three sides by parallel lines 3 and line 5..

In Fig. 2 the sheet 1 is sufliciently wide to produce two rows of shingles, the similar lines being designated by similar reference characters with primes. The lines 6',however, serve to separate the ends of two adjacent shingles from each other. Instead of cutting these lines at an angle to the edges of the sheet as shown at 6 and 6. these lines may be out parallel to the edges of the sheet as shown at 6 In Fig. 3, the sheet 1 is slit along lines similar to the ones described in connection with Figs. 1 and 2 and designated by similar reference characters with the subscript 3, the sheet being sufliciently wide to produce three rows of shingles of the desired shape. It is obvious that there is less waste of material when the shingles are cut as shown in Fig. 3 than when they are cut as shown in Fig. 2 and there is less waste of material when out as shown in Fig. 2 than 'when out as shown in Fig. 1 as the triangular portions cut out along the edges of the sheets and thrown away, are smaller in proportion to the number of shingles when cut from wide stri )S than when out from narrower ones, as the amount of waste material is constant per length of the edge of the sheet whether the sheet is of sufficient width to produce a single row or a plurality of rows of shingles.

When these shingles are intended to be installed, one of them is laid as shown at 10 in Fig. 4 and another one is laid adjacent thereto with its lower end in line with the lower end of the first one and with the edge 11 of one shingle in contact with the shorter edge 12 of the adjacent one. In this way a space 13 is left between the exposed ends of the shingles and the upper end of this space is closed by the lower end of the sloping edge 11 of the shingle. When the next row is installed, the lower ends of the shingle'smay be placed either coinciding with the angle 4 of a shingle in the lower row or the ends of these shingles in the next row may be placed even with the upper pointed end of the spaces13 between shingles in a lower row, depending upon how much overlap is desired and also depending upon the relative length of the spaces 13 between the shingles as compared to the total length of the shingles.

I claim:

1. A shingle having the portion that is to be exposed to the weather, whenthe shingle is installed, extending at an angle to the main body portion of the shingle, one of the sides of said exposed portion being longer than the other.

2. A shingle having the portion that is to be exposed to the weather, when the shingle is installed, extending at an angle to the main body portion of the shingle, one of the sides of said body portion being longer than the other.

3. A shingle made up of two trapezoids each having two right angles, one of said trapezoids having a greater area than the other one and the right angles of one trapethe ends of said shingle being parallel.

6. An elbow-shaped shingle made up of .two trapezoids, the ends of the shingle being parallel and the line of jointure of the trapezoids being non-parallel to the ends of the shingle.

7. A shingle composed of two trapezoids each having two right angles, the right angles of one trapezoid being adjacent the oblique side of the other trapezoid.

In testimony whereof I aflix my signature.

RICHARD A. HOLDSWORTH. 

